prpdce.h
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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is the Netscape Portable Runtime (NSPR).
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998-2000
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- /*
- * File: prpdce.h
- * Description: This file is the API defined to allow for DCE (aka POSIX)
- * thread emulation in an NSPR environment. It is not the
- * intent that this be a fully supported API.
- */
- #if !defined(PRPDCE_H)
- #define PRPDCE_H
- #include "prlock.h"
- #include "prcvar.h"
- #include "prtypes.h"
- #include "prinrval.h"
- PR_BEGIN_EXTERN_C
- #define _PR_NAKED_CV_LOCK (PRLock*)0xdce1dce1
- /*
- ** Test and acquire a lock.
- **
- ** If the lock is acquired by the calling thread, the
- ** return value will be PR_SUCCESS. If the lock is
- ** already held, by another thread or this thread, the
- ** result will be PR_FAILURE.
- */
- NSPR_API(PRStatus) PRP_TryLock(PRLock *lock);
- /*
- ** Create a naked condition variable
- **
- ** A "naked" condition variable is one that is not created bound
- ** to a lock. The CV created with this function is the only type
- ** that may be used in the subsequent "naked" condition variable
- ** operations (see PRP_NakedWait, PRP_NakedNotify, PRP_NakedBroadcast);
- */
- NSPR_API(PRCondVar*) PRP_NewNakedCondVar(void);
- /*
- ** Destroy a naked condition variable
- **
- ** Destroy the condition variable created by PR_NewNakedCondVar.
- */
- NSPR_API(void) PRP_DestroyNakedCondVar(PRCondVar *cvar);
- /*
- ** Wait on a condition
- **
- ** Wait on the condition variable 'cvar'. It is asserted that
- ** the lock protecting the condition 'lock' is held by the
- ** calling thread. If more time expires than that declared in
- ** 'timeout' the condition will be notified. Waits can be
- ** interrupted by another thread.
- **
- ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
- */
- NSPR_API(PRStatus) PRP_NakedWait(
- PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
- /*
- ** Notify a thread waiting on a condition
- **
- ** Notify the condition specified 'cvar'.
- **
- ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
- */
- NSPR_API(PRStatus) PRP_NakedNotify(PRCondVar *cvar);
- /*
- ** Notify all threads waiting on a condition
- **
- ** Notify the condition specified 'cvar'.
- **
- ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
- */
- NSPR_API(PRStatus) PRP_NakedBroadcast(PRCondVar *cvar);
- PR_END_EXTERN_C
- #endif /* PRPDCE_H */